Storm Station

At a river or reservoir gauge

DCP network, identified by the register

Identifier
DSCV2
Latitude
38.95440 N
Longitude
77.41980 W
Elevation
-
Listed
Automatically, on 36 reports in 50 hours over the last seven days
Rank
1,166of 1,183 in Virginia, Oct 4
Precipitation this hour
0in
Precipitation today
0in

On the radar over Unknown Tributary AT Dulles StationReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

At a river or reservoir gauge

Drawn as the kind of place it stands at. 13 instruments in Virginia stand at one.

Station charts

Unknown Tributary AT Dulles Station Report

Rank 1,166 of 1,183 in Virginia, Oct 4. The 247 rank orders a state's stations by their 247 score out of 100: how reliably they report, how accurate their readings are against a reference station, how their readings pass their checks, and how they stand against the forecast.

247 score66.1of 100

  1. Reports receivedweight 3519.736 of 183 scheduled reports received in 7 days
  2. Arrivalweight 1089.2half its reports arrived within 15 min
  3. Continuityweight 1053.7longest silence 12 h, on a schedule of one report every 55 min
  4. Accuracyweight 20--
  5. Instrument checksweight 15--
  6. Forecast checkweight 10--

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.

Rank
1,166of 1,183 in Virginia, Oct 4
Schedule
every 59 minon the hour's :00 and :59
Reports received, 24 hours
8 of 2433.3% of its schedule, 10 reports in all
Reports received, 7 days
35 of 17020.5% of its schedule, 59 reports in all
Days reported, 30 days
30 of 30
Longest silence, 7 days
11 h 59 minfrom Sep 30, 6:00 PM
Latest report
Oct 4, 4:05 AMlocal time
Time to reach Storm Station
18 min9 in 10 within 19 min

From Storm Station's own record of every report it heard from this station.

Its schedule is one report every 59 min, 24 in 24 hours. Two reports in the same 59 min count as one received.

Chart of the 1,183 ranked stations in Virginia on Oct 4 by the share of their scheduled reports received in Storm Station's own record, up to 7 days, in tenths: 0 to 9 per cent, 4; 10 to 19 per cent, 12; 20 to 29 per cent, 12; 30 to 39 per cent, 24; 40 to 49 per cent, 4; 50 to 59 per cent, 9; 60 to 69 per cent, 89; 70 to 79 per cent, 40; 80 to 89 per cent, 37; 90 to 99 per cent, 569; 100 per cent, 383. Unknown Tributary AT Dulles Station received 19.6 per cent, 36 of 183 scheduled reports, rank 1,166 of 1,183.WHERE IT RANKS IN VIRGINIA, Oct 4THIS ONE: 19.6%, 36 OF 183, RANK 1,166 OF 1,183PER CENT OF SCHEDULED REPORTS RECEIVEDIN STORM STATION'S OWN RECORD, UP TO 7 DAYS1101000 to 9410 to 191220 to 291230 to 392440 to 49450 to 59960 to 698970 to 794080 to 893790 to 99569100383STATIONS, LOG SCALE
Chart of Unknown Tributary AT Dulles Station's rank in Virginia by how it reported, day by day, from 2026-09-27 to 2026-10-04: 2026-09-27 rank 625 of 733; 2026-09-28 rank 702 of 807; 2026-09-29 rank 732 of 818; 2026-09-30 rank 112 of 818; 2026-10-01 rank 210 of 820; 2026-10-02 rank 1,004 of 1,140; 2026-10-03 rank 1,004 of 1,140; 2026-10-04 rank 1,166 of 1,183.ITS RANK IN VIRGINIA, DAY BY DAYRANK, FIRST AT THE TOP15001,0001,500Sep 27Sep 29Oct 1Oct 3Oct 4
The ranking these charts were drawn from, as tables
Share of scheduled reports receivedStations
100%383
90 to 99%569
80 to 89%37
70 to 79%40
60 to 69%89
50 to 59%9
40 to 49%4
30 to 39%24
20 to 29%12
10 to 19%12
0 to 9%4
DayRankStations rankedShare received
Oct 4, 20261,1661,18319.6%
Oct 3, 20261,0041,14065.8%
Oct 2, 20261,0041,14065.8%
Oct 1, 2026210820100.0%
Sep 30, 2026112818100.0%
Sep 29, 202673281880.0%
Sep 28, 202670280780.0%
Sep 27, 202662573381.8%
Precipitation at Unknown Tributary AT Dulles Station, precipitation from 0.04 to 0.04, the latest 0.04, in inches.PRECIPITATIONin0.000.030.050.070.106 AM9 AM12 PM3 PM6 PM9 PMOct 43 AM
Reports received at Unknown Tributary AT Dulles Station, reports from 0.0 to 2.0, the latest 1.0, in reports.REPORTS RECEIVEDreports00.511.526 AM9 AM12 PM3 PM6 PM9 PMOct 43 AM
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Sun 4, 5 AM0.041
Precipitation at Unknown Tributary AT Dulles Station, precipitation from 0.04 to 0.04, the latest 0.04, in inches.PRECIPITATIONin0.000.030.050.070.10Mon 28Tue 29Wed 30Thu 1Fri 2Sat 3Sun 4
Reports received at Unknown Tributary AT Dulles Station, reports from 0.0 to 6.0, the latest 1.0, in reports.REPORTS RECEIVEDreports0246Mon 28Tue 29Wed 30Thu 1Fri 2Sat 3Sun 4
The readings these charts were drawn from, as a table
HourPrecipitation inReports
Sun 4, 5 AM0.041
Precipitation at Unknown Tributary AT Dulles Station, precipitation from 0.00 to 1.23, the latest 0.00, in inches.PRECIPITATIONin0.000.501.001.50Sep 5Sep 10Sep 15Sep 20Sep 25Sep 30
The readings these charts were drawn from, as a table
DayPrecipitation in
Oct 40.00
Oct 30.16
Oct 20.24
Oct 10.00
Sep 300.00
Sep 290.00
Sep 280.00
Sep 270.00
Sep 260.20
Sep 250.00
Sep 240.00
Sep 230.20
Sep 221.23
Sep 210.44
Sep 200.08
Sep 190.00
Sep 180.00
Sep 170.12
Sep 160.00
Sep 150.00
Sep 140.00
Sep 130.04
Sep 120.00
Sep 110.60
Sep 100.00
Sep 90.00
Sep 80.00
Sep 70.00
Sep 60.00
Sep 50.00
Precipitation at Unknown Tributary AT Dulles Station, precipitation from 0.00 to 2.05, the latest 0.00, in inches.PRECIPITATIONin0.001.002.003.00NovDec2026FebMarAprMayJunJulAugSepOct
The readings these charts were drawn from, as a table
DayPrecipitation in
Oct 4, 20260.00
Oct 3, 20260.16
Oct 2, 20260.24
Oct 1, 20260.00
Sep 30, 20260.00
Sep 29, 20260.00
Sep 28, 20260.00
Sep 27, 20260.00
Sep 26, 20260.20
Sep 25, 20260.00
Sep 24, 20260.00
Sep 23, 20260.20
Sep 22, 20261.23
Sep 21, 20260.44
Sep 20, 20260.08
Sep 19, 20260.00
Sep 18, 20260.00
Sep 17, 20260.12
Sep 16, 20260.00
Sep 15, 20260.00
Sep 14, 20260.00
Sep 13, 20260.04
Sep 12, 20260.00
Sep 11, 20260.60
Sep 10, 20260.00
Sep 9, 20260.00
Sep 8, 20260.00
Sep 7, 20260.00
Sep 6, 20260.00
Sep 5, 20260.00
Sep 4, 20260.12
Sep 3, 20260.71
Sep 2, 20260.00
Sep 1, 20260.00
Aug 31, 20260.00
Aug 30, 20260.63
Aug 29, 20260.00
Aug 28, 20260.00
Aug 27, 20260.08
Aug 26, 20260.00
Aug 25, 20260.00
Aug 24, 20260.00
Aug 23, 20260.00
Aug 22, 20260.12
Aug 21, 20260.00
Aug 20, 20260.47
Aug 19, 20260.00
Aug 18, 20260.00
Aug 17, 20260.00
Aug 16, 20260.83
Aug 15, 20260.00
Aug 14, 20260.00
Aug 13, 20260.00
Aug 12, 20260.00
Aug 11, 20260.12
Aug 10, 20260.47
Aug 9, 20260.00
Aug 8, 20260.04
Aug 7, 20260.20
Aug 6, 20260.36
Aug 5, 20260.44
Aug 4, 20260.00
Aug 3, 20260.08
Aug 2, 20260.24
Aug 1, 20260.00
Jul 31, 20260.00
Jul 30, 20260.00
Jul 29, 20260.00
Jul 28, 20260.00
Jul 27, 20260.04
Jul 26, 20260.00
Jul 25, 20260.00
Jul 24, 20260.00
Jul 23, 20260.00
Jul 22, 20260.00
Jul 21, 20260.67
Jul 20, 20260.00
Jul 19, 20260.00
Jul 18, 20261.10
Jul 17, 20260.00
Jul 16, 20260.00
Jul 15, 20260.00
Jul 14, 20260.00
Jul 13, 20260.00
Jul 12, 20260.04
Jul 11, 20262.05
Jul 10, 20260.00
Jul 9, 20261.18
Jul 8, 20260.08
Jul 7, 20260.08
Jul 6, 20260.76
Jul 5, 20260.00
Jul 4, 20260.04
Jul 3, 20260.00
Jul 2, 20260.00
Jul 1, 20260.00
Jun 30, 20260.00
Jun 29, 20260.00
Jun 28, 20260.79
Jun 27, 20260.12
Jun 26, 20260.00
Jun 25, 20260.00
Jun 24, 20260.00
Jun 23, 20261.07
Jun 22, 20260.12
Jun 21, 20260.00
Jun 20, 20260.00
Jun 19, 20260.00
Jun 18, 20260.00
Jun 17, 20260.00
Jun 16, 20260.00
Jun 15, 20260.00
Jun 14, 20260.00
Jun 13, 20260.00
Jun 12, 20260.52
Jun 11, 20260.12
Jun 10, 20260.44
Jun 9, 20260.00
Jun 8, 20260.00
Jun 7, 20260.00
Jun 6, 20260.00
Jun 5, 20260.00
Jun 4, 20260.00
Jun 3, 20260.00
Jun 2, 20260.00
Jun 1, 20260.00
May 31, 20260.00
May 30, 20260.00
May 29, 20260.00
May 28, 20260.00
May 27, 20260.04
May 26, 20260.08
May 25, 20260.04
May 24, 20261.15
May 23, 20260.56
May 22, 20260.80
May 21, 20260.20
May 20, 20261.14
May 19, 20260.00
May 18, 20260.00
May 17, 20260.00
May 16, 20260.00
May 15, 20260.00
May 14, 20260.04
May 13, 20260.32
May 12, 20260.00
May 11, 20260.04
May 10, 20260.12
May 9, 20260.00
May 8, 20260.00
May 7, 20260.04
May 6, 20260.20
May 5, 20260.00
May 4, 20260.00
May 3, 20260.00
May 2, 20260.00
May 1, 20260.00
Apr 30, 20260.00
Apr 29, 20260.52
Apr 28, 20260.00
Apr 27, 20260.00
Apr 26, 20260.00
Apr 25, 20260.16
Apr 24, 20260.00
Apr 23, 20260.00
Apr 22, 20260.00
Apr 21, 20260.00
Apr 20, 20260.00
Apr 19, 20260.20
Apr 18, 20260.00
Apr 17, 20260.00
Apr 16, 20260.00
Apr 15, 20260.00
Apr 14, 20260.00
Apr 13, 20260.00
Apr 12, 20260.00
Apr 11, 20260.00
Apr 10, 20260.00
Apr 9, 20260.00
Apr 8, 20260.00
Apr 7, 20260.00
Apr 6, 20260.00
Apr 5, 20260.60
Apr 4, 20260.00
Apr 3, 20260.00
Apr 2, 20260.00
Apr 1, 20260.04
Mar 31, 20260.00
Mar 30, 20260.00
Mar 29, 20260.00
Mar 28, 20260.00
Mar 27, 20260.20
Mar 26, 20260.00
Mar 25, 20260.00
Mar 24, 20260.00
Mar 23, 20260.00
Mar 22, 20260.00
Mar 21, 20260.00
Mar 20, 20260.00
Mar 19, 20260.00
Mar 18, 20260.00
Mar 17, 20260.00
Mar 16, 20260.00
Mar 15, 20260.00
Mar 14, 20260.00
Mar 13, 20260.00
Mar 12, 20260.00
Mar 11, 20260.00
Mar 10, 20260.00
Mar 9, 20260.00
Mar 8, 20260.00
Mar 7, 20260.00
Mar 6, 20260.00
Mar 5, 20260.00
Mar 4, 20260.00
Mar 3, 20260.00
Mar 2, 20260.00
Mar 1, 20260.00
Feb 28, 20260.00
Feb 27, 20260.00
Feb 26, 20260.00
Feb 25, 20260.00
Feb 24, 20260.00
Feb 23, 20260.00
Feb 22, 20260.00
Feb 21, 20260.00
Feb 20, 20260.00
Feb 19, 20260.00
Feb 18, 20260.00
Feb 17, 20260.00
Feb 16, 20260.00
Feb 15, 20260.00
Feb 14, 20260.00
Feb 13, 20260.00
Feb 12, 20260.00
Feb 11, 20260.00
Feb 10, 20260.00
Feb 9, 20260.00
Feb 8, 20260.00
Feb 7, 20260.00
Feb 6, 20260.00
Feb 5, 20260.00
Feb 4, 20260.00
Feb 3, 20260.12
Feb 2, 20260.08
Feb 1, 20260.00
Jan 31, 20260.00
Jan 30, 20260.00
Jan 29, 20260.00
Jan 28, 20260.00
Jan 27, 20260.00
Jan 26, 20260.04
Jan 25, 20260.00
Jan 24, 20260.00
Jan 23, 20260.00
Jan 22, 20260.00
Jan 21, 20260.00
Jan 20, 20260.00
Jan 19, 20260.00
Jan 18, 20260.08
Jan 17, 20260.00
Jan 16, 20260.00
Jan 15, 20260.00
Jan 14, 20260.00
Jan 13, 20260.00
Jan 12, 20260.00
Jan 11, 20260.00
Jan 10, 20261.16
Jan 9, 20260.00
Jan 8, 20260.00
Jan 7, 20260.00
Jan 6, 20260.00
Jan 5, 20260.00
Jan 4, 20260.00
Jan 3, 20260.00
Jan 2, 20260.00
Jan 1, 20260.00
Dec 31, 20250.00
Dec 30, 20250.00
Dec 29, 20250.00
Dec 28, 20250.00
Dec 27, 20250.00
Dec 26, 20250.04
Dec 25, 20250.00
Dec 24, 20250.00
Dec 23, 20250.00
Dec 22, 20250.00
Dec 21, 20250.00
Dec 20, 20250.00
Dec 19, 20250.24
Dec 18, 20250.12
Dec 17, 20250.00
Dec 16, 20250.00
Dec 15, 20250.00
Dec 14, 20250.00
Dec 13, 20250.00
Dec 12, 20250.00
Dec 11, 20250.00
Dec 10, 20250.00
Dec 9, 20250.00
Dec 8, 20250.00
Dec 7, 20250.00
Dec 6, 20250.04
Dec 5, 20250.00
Dec 4, 20250.00
Dec 3, 20250.00
Dec 2, 20250.76
Dec 1, 20250.00
Nov 30, 20250.08
Nov 29, 20250.00
Nov 28, 20250.00
Nov 27, 20250.00
Nov 26, 20250.00
Nov 25, 20250.08
Nov 24, 20250.00
Nov 23, 20250.00
Nov 22, 20250.04
Nov 21, 20250.04
Nov 20, 20250.00
Nov 19, 20250.08
Nov 18, 20250.16
Nov 17, 20250.00
Nov 16, 20250.00
Nov 15, 20250.00
Nov 14, 20250.00
Nov 13, 20250.00
Nov 12, 20250.00
Nov 11, 20250.00
Nov 10, 20250.00
Nov 9, 20250.08
Nov 8, 20250.12
Nov 7, 20250.12
Nov 6, 20250.00
Nov 5, 20250.00
Nov 4, 20250.00
Nov 3, 20250.00
Nov 2, 20250.00
Nov 1, 20250.00
Oct 31, 20250.00
Oct 30, 20250.76
Oct 29, 20250.36
Oct 28, 20250.00
Oct 27, 20250.00
Oct 26, 20250.00
Oct 25, 20250.00
Oct 24, 20250.00
Oct 23, 20250.00
Oct 22, 20250.04
Oct 21, 20250.12
Oct 20, 20250.04
Oct 19, 20250.52
Oct 18, 20250.00
Oct 17, 20250.00
Oct 16, 20250.00
Oct 15, 20250.00
Oct 14, 20250.12
Oct 13, 20250.04
Oct 12, 20250.16
Oct 11, 20250.00
Oct 10, 20250.00
Oct 9, 20250.00
Oct 8, 20250.12
Oct 7, 20250.00
Oct 6, 20250.00
Oct 5, 20250.00
Precipitation at Unknown Tributary AT Dulles Station, precipitation from 0.00 to 6.69, the latest 3.74, in inches.PRECIPITATIONin0.002.004.006.008.0020222023202420252026
Days reported at Unknown Tributary AT Dulles Station, days from 4.0 to 31.0, the latest 4.0, in days.DAYS REPORTEDdays010203120222023202420252026
The readings these charts were drawn from, as a table
MonthPrecipitation inDays reported
Sep 20263.7430
Aug 20264.0831
Jul 20266.0431
Jun 20263.1830
May 20264.7731
Apr 20261.5230
Mar 20260.2031
Feb 20260.2028
Jan 20261.2831
Dec 20251.2031
Nov 20250.8030
Oct 20252.2831
Sep 20250.2830
Aug 20250.1231
Jul 20252.9131
Jun 20256.6930
May 20256.4431
Apr 20252.0728
Mar 20251.3531
Feb 20252.4028
Jan 20251.2031
Dec 20243.4331
Nov 20241.7530
Oct 20240.1231
Sep 20243.3330
Aug 20245.3831
Jul 20241.9831
Jun 20240.4830
May 20244.2331
Apr 20242.3930
Mar 20243.7631
Feb 20241.3629
Jan 20245.6031
Dec 20235.9231
Nov 20232.4330
Oct 20230.8831
Sep 20235.0130
Aug 20231.8231
Jul 20235.4531
Jun 20232.1530
May 20231.3231
Apr 20233.2730
Mar 20231.4831
Feb 20232.2028
Jan 20231.4431
Dec 20224.8331
Nov 20222.8330
Oct 20220.3231
Sep 20220.8830
Aug 20220.0031
Jul 20220.4431
Jun 20222.5130
May 20226.5931
Apr 20222.1230
Mar 20221.6331
Feb 20222.0828
Jan 20223.4331
Dec 20210.4431
Nov 20210.8430
Precipitation at Unknown Tributary AT Dulles Station, precipitation from 0.00 to 30.61, the latest 3.74, in inches.PRECIPITATIONin0.0010.0020.0030.0040.0020172019202120232025
Days reported at Unknown Tributary AT Dulles Station, days from 4.0 to 31.0, the latest 4.0, in days.DAYS REPORTEDdays010203120172019202120232025
The readings these charts were drawn from, as a table
MonthPrecipitation inDays reported
Sep 20263.7430
Aug 20264.0831
Jul 20266.0431
Jun 20263.1830
May 20264.7731
Apr 20261.5230
Mar 20260.2031
Feb 20260.2028
Jan 20261.2831
Dec 20251.2031
Nov 20250.8030
Oct 20252.2831
Sep 20250.2830
Aug 20250.1231
Jul 20252.9131
Jun 20256.6930
May 20256.4431
Apr 20252.0728
Mar 20251.3531
Feb 20252.4028
Jan 20251.2031
Dec 20243.4331
Nov 20241.7530
Oct 20240.1231
Sep 20243.3330
Aug 20245.3831
Jul 20241.9831
Jun 20240.4830
May 20244.2331
Apr 20242.3930
Mar 20243.7631
Feb 20241.3629
Jan 20245.6031
Dec 20235.9231
Nov 20232.4330
Oct 20230.8831
Sep 20235.0130
Aug 20231.8231
Jul 20235.4531
Jun 20232.1530
May 20231.3231
Apr 20233.2730
Mar 20231.4831
Feb 20232.2028
Jan 20231.4431
Dec 20224.8331
Nov 20222.8330
Oct 20220.3231
Sep 20220.8830
Aug 20220.0031
Jul 20220.4431
Jun 20222.5130
May 20226.5931
Apr 20222.1230
Mar 20221.6331
Feb 20222.0828
Jan 20223.4331
Dec 20210.4431
Nov 20210.8430
Oct 202118.7528
Sep 202130.6129
Jun 20211.2830
May 20211.0431
Apr 20212.3530
Mar 20212.0431
Feb 20213.7528
Jan 20211.3228
Nov 20202.1228
Oct 20203.5231
Sep 20202.4230
Aug 20207.3431
Jul 20205.3231
Jun 20205.5630
May 20202.6331
Apr 20205.6330
Mar 20201.8431
Feb 20202.4829
Jan 20202.5631
Dec 20191.4831
Nov 20191.4030
Oct 20196.1230
Sep 20190.2829
Aug 20194.1930
Jul 20193.6431
Jun 20192.0730
May 20195.5631
Apr 20192.5428
Mar 20194.4031
Feb 20193.4428
Jan 20192.9528
Oct 20181.3630
Jul 20180.2331
Apr 20180.0827
Mar 20180.0331
Feb 20180.1028
Jan 20180.0530
Dec 20170.0129
Nov 20170.0430
Oct 20170.0830
Sep 20170.0028
Aug 20170.0728
Jul 20170.2831
Jun 20170.0227
May 20170.1429
Apr 20170.0726
Mar 20170.0226
Dec 20160.0430
Nov 20160.0430

The whole record, Mar 27, 2013 to Oct 4, 2026, 4,669 days reported.

Average precipitation by month at Unknown Tributary AT Dulles Station, precipitation from 1.03 to 3.60, the latest 1.59, in inches.AVERAGE PRECIPITATION BY MONTHin0.001.002.003.004.00JanFebMarAprMayJunJulAugSepOctNovDec
Days reported, by year at Unknown Tributary AT Dulles Station, days reported from 228.0 to 366.0, the latest 277.0, in days.DAYS REPORTED, BY YEARdays01002003003662013201520172019202120232025
The readings these charts were drawn from, as a table
MonthAverage high FAverage low FRecord high FRecord low FAverage precipitation inStrongest gust mph
Jan----1.66-
Feb----1.52-
Mar----1.30-
Apr----1.72-
May----3.00-
Jun----2.04-
Jul----2.07-
Aug----1.93-
Sep----3.60-
Oct----2.59-
Nov----1.03-
Dec----1.59-

The instrumentWhat an instrument is FB-INS-001

What it seesMoon and tides FB-CLK-003Hurricane FB-EVT-043Nor'easter FB-EVT-066Flash flood FB-EVT-100Coastal flood FB-EVT-105

Near Unknown Tributary AT Dulles Station

Gauges

Weather instruments

Places